Dot printing structure for processing automobile safety air bag

Abstract

The invention provides a dot printing structure for automobile safety air bag machining. A lifting mechanism is vertically arranged in a rack, a dot printing assembly is installed on the rack in an up-down sliding mode, the dot printing assembly is connected with the lifting mechanism, and a containing plate is arranged in the rack in a front-back sliding mode; the device comprises a placement plate, a lifting mechanism is installed at the lower end of the placement plate, a translation mechanism and an adsorption mechanism are installed at the lower end of the placement plate, the adsorption mechanism is connected with the translation mechanism, and the translation mechanism is connected with the lifting mechanism. The placement plate can move backwards along with the placement plate and is located under the dot printing assembly, and after the placement plate is located under the dot printing assembly, the dot printing assembly continues to move downwards and conducts dot printing on the safety air bag below the dot printing assembly, so that it can be guaranteed that the safety air bag can be subjected to dot printing only when the safety air bag is located below the dot printing assembly; and the phenomena of wrong printing and hand pressing are avoided.

Description

Technical Field

[0001] The invention belongs to the field of automobile safety airbag processing, and in particular relates to a dot printing structure used for automobile safety airbag processing. Background Art

[0002] During the production and processing of airbags, semi-finished airbags need to be dot-printed and marked. The main functions of dot-printing are as follows: 1. International and national laws and regulations; 2. Customers' special requirements; 3. Airbag sewing reference; 4. Airbag folding. Therefore, every dot on the airbag is very important.

[0003] After cutting, the airbag is formed into a long strip. After checking whether the shape and size meet the requirements, the dot printing operation is carried out, and then the finished airbag is sewn. At present, when the airbag is dotted and marked, a dot printing machine is generally used. A lifting mechanism is set above the platform for placing the airbag, and a dot printing head is installed on the lifting mechanism. When in use, the airbag is placed above the platform, and then the lifting mechanism controls the dot printing head to move downward, so that the dot printing head can dot print it. In the above structure, the lifting mechanism is controlled by a control system to lift and lower. When in use, the staff places the airbag on the placement platform, and then presses the lifting mechanism down for dot printing. Since the placement of the airbag needs to be manually placed on the platform, once a system failure occurs during the manual placement of the airbag, the lifting mechanism will press down and cause hand pressure, which poses a safety hazard. To this end, we designed a dot printing structure for automobile airbag processing. Summary of the invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide a dot printing structure for automobile airbag processing to solve the problems raised in the above background technology.

[0005] The technical solution of the present invention is achieved as follows: a dot printing structure for automobile airbag processing, comprising a frame composed of four groups of vertical columns, a lifting mechanism is vertically arranged inside the frame, a dot printing component is installed on the frame for sliding up and down, the dot printing component is connected to the lifting mechanism, a placement plate is arranged inside the frame for sliding back and forth, a translation mechanism and an adsorption mechanism are installed at the lower end of the placement plate, the adsorption mechanism is connected to the translation mechanism, and the translation mechanism is connected to the lifting mechanism.

[0006] As a preferred embodiment, the lifting mechanism includes two groups of lifting screws symmetrically arranged at both ends of the frame, a pulley is installed at the lower end of the lifting screw, a motor plate is installed under the frame, a drive motor is installed on the motor plate, and the output shaft of the drive motor is connected to the two groups of lifting screws through a pulley and a toothed belt. The rotation of the drive motor can make the two groups of lifting screws rotate synchronously, thereby making the dot printing assembly move downward or upward, and the placement plate can move forward or backward under the action of the translation mechanism.

[0007] As a preferred embodiment, the dot printing assembly includes four sets of lifting rails symmetrically and vertically installed on the inner side of the frame, and a lifting plate is installed between the four sets of lifting rails through a slider to slide up and down, and a plurality of dot printing plates are installed on the lifting plate, and a dot printing head is arranged on the dot printing plate. The position and number of the dot printing plate and the dot printing head are adjusted accordingly according to the shape and size of the airbag to be dot printed; Lifting screw seats are symmetrically arranged at both ends of the lifting plate, and two groups of the lifting screw seats are respectively connected to two lifting screws. The rotation of the lifting screws can move the lifting screw seats up and down, thereby moving the entire dot printing assembly up and down.

[0008] As a preferred embodiment, two groups of movable rails are symmetrically arranged on the inner side of the frame, a placement plate is slidably arranged above the movable rails, the placement plate includes a lower plate and an upper plate, a connecting groove is opened above the lower plate, and a plurality of adsorption holes are penetrated from top to bottom of the upper plate, the adsorption holes are connected with the connecting groove, and the connecting groove is connected with the adsorption mechanism below, and the adsorption mechanism can adsorb and fix the airbag placed above the placement plate through the connecting groove and the adsorption holes, so that the airbag will not be offset in position during the movement and dotting process, thereby improving the accuracy.

[0009] As a preferred embodiment, the translation mechanism includes two groups of translation seats symmetrically fixed under the placing plate, the internal cavity of the translation seat is designed to form a moving cavity, a pushing portion is provided on the inward side of the translation seat for sliding back and forth, a pushing block is provided in the pushing portion for sliding up and down, and the pushing block slides and extends into the moving cavity, a translation rod is installed on the inward side of the pushing portion through an axle pin for rotation, and the two translation rods are connected to a translation screw seat at one end away from the pushing portion through an axle pin for rotation, and the two ends of the translation screw seat are respectively threadedly connected to two lifting screws, and the lifting screw can make the translation screw seat move up and down when rotating, and the translation screw seat that moves up and down can pull the pushing portion to move forward and backward, and the pushing block that moves forward and backward can push the translation seat to move forward and backward, thereby making the placing plate move forward and backward.

[0010] As a preferred embodiment, the moving cavity includes a moving groove arranged in the translation seat, a pushing groove is provided at the front end of the lower end of the moving groove, the height of the moving groove is higher than the pushing groove, the moving groove and the pushing groove are distributed in a stepped manner, and the innermost end of the pushing groove is designed at 90 degrees to form a pushing surface, the pushing groove is designed to penetrate up and down near one end of the moving groove to form a lifting port, a lifting block is provided in the lifting port to slide up and down, a lifting shaft is provided on the lifting block, and when the pushing part moves backward, the pushing block will contact the pushing surface, and at this time the pushing block will push the entire translation seat to move backward, and the placement plate will move backward together; The moving track is provided with a switching groove on the inner side thereof, wherein the switching groove comprises a horizontal groove arranged on the inner side of the moving track, and a lifting groove inclined upward is arranged at the tail end of the horizontal groove, wherein the lifting shaft is slidably placed in the switching groove, and the placing plate can make the translation seat move together during the backward movement, and at this time, the lifting shaft will move along the switching groove together; When the lifting shaft moves into the lifting groove, the lifting shaft will move upward along the lifting groove, thereby causing the lifting block to move upward together until the upper end of the lifting block is flush with the surface of the moving groove. The lifting block will push the pushing block upward and place the pushing block on the moving groove. At this time, the pushing block continues to move backward, and the placement plate will not move backward accordingly. The dot printing assembly continues to move downward, and the dot printing head prints the surface of the airbag on its placement plate, and then it rotates in the opposite direction again, the dot printing head moves upward, and then the placement plate moves forward and resets.

[0011] As a preferred embodiment, the pushing part is penetrated by a lifting groove on the left and right sides, and a lower pressing groove is penetrated by the front and back sides below the pushing part, and a circular hole is formed between the top of the lower pressing groove and the bottom of the lifting groove. A lower pressing rod is provided in the lower pressing groove for sliding up and down, and the lower pressing rod passes through the circular hole and is fixed to the pushing block. A circular ring is provided below the lower pressing rod, and a spring is sleeved on the lower pressing rod, and the upper and lower ends of the spring are respectively in contact with the top of the lower pressing groove and the circular ring; The pushing block can move up and down in the lifting groove. When the lifting block moves upward, the lifting block can push the pushing block to move upward together, and make the bottom end of the pushing block and the bottom end of the moving groove be on the same surface. At this time, the pushing block can move in the moving groove without causing the placement plate to move. When the pushing block moves forward and leaves the moving groove, the spring and the downward pressure rod enable the pushing block to fall into the pushing groove again, thereby facilitating the next backward movement.

[0012] As a preferred embodiment, the adsorption mechanism includes an adsorption box fixed under the placement plate, the interior of the adsorption box is hollowed out to form an adsorption chamber, a notch is provided under the connecting groove, and the connecting groove is connected to the adsorption chamber through the notch; A piston is provided in the adsorption chamber for sliding up and down, and two groups of lower pull rods are symmetrically provided below the piston, and the lower pull rods pass through the adsorption box and are placed below it, and a connecting plate is fixed between the two groups of lower pull rods, and nut seats are symmetrically sleeved at both ends of the connecting plate, and two groups of bearing seats are symmetrically installed on the outside of the adsorption box, and a driving shaft is rotatably installed on the bearing seat, and a threaded portion is provided at the lower end of the driving shaft, and the threaded portion is threadedly connected with the nut seat, and a driving gear is installed at the upper end of the driving shaft, and a driving rack is fixed on the inner side of the pushing block, and the driving gear is meshed with the driving rack; As the pushing part moves backward along the pushing groove along with the translation mechanism, the driving gear will mesh with the driving gear and make it rotate in the positive direction, thereby causing the driving shaft to rotate in the positive direction. The positively rotating driving shaft will cause the connecting plate to move downward through the threaded part, and the piston will move downward accordingly. The internal space of the adsorption chamber will increase and the pressure will decrease, thereby causing the airbag to be adsorbed on the placement plate.

[0013] As a preferred embodiment, a sliding track is fixed under the placement plate, two groups of sliding blocks are slidably installed on the sliding track, the driving rack is fixed under the two groups of sliding blocks, and the pushing part is fixed to the sliding block, which is convenient for the installation of the driving rack and the pushing part and the forward and backward sliding.

[0014] As a preferred embodiment, when the driving gear is disengaged from the driving rack, the pushing block is at the rear end of the pushing groove, and at this time, the pushing block is in contact with the pushing surface. When the pushing portion starts to move along the inside of the pushing groove, the pushing portion drives the driving rack to move backward and causes the driving gear to rotate, thereby causing the piston to move downward to absorb the upper airbag, and at this time, the entire placement plate will not move backward; When the push block contacts the push surface, the piston is pulled to the maximum extent. At this time, the driving rack and the driving gear are not connected, the piston will not be pulled further, and the push block will push the translation seat and the placement plate to move backward, so that the airbag is under the dot printing head.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are: 1. A placing plate is arranged on the frame to slide forward and backward, and a translation mechanism is arranged at the lower end of the placing plate. The translation mechanism and the dot printing assembly are connected to the lifting mechanism. When the dot printing assembly moves downward, the placing plate can move backward together with it and make it directly under the dot printing assembly. After the placing plate is under the dot printing assembly, the dot printing assembly continues to move downward and dot prints the safety airbag below, which can ensure that the safety airbag is under the dot printing assembly before the assembly can be dot printed, thereby avoiding the occurrence of misprinting and hand pressing, and improving safety; 2. By setting an adsorption hole on the placement plate and setting an adsorption mechanism under the placement plate, the adsorption mechanism is connected to the adsorption hole, and the adsorption mechanism is connected to the translation mechanism. The placement plate can move backward and perform dot printing only after the upper airbag is adsorbed and fixed, avoiding the position deviation caused by forgetting to fix the airbag or moving it, and improving the dot printing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 The figure is a schematic diagram of the overall structure of a dot printing structure used for automobile airbag processing according to the present invention.

[0018] Figure 2 for Figure 1 Axonometric drawing of the upper and lower isometrics.

[0019] Figure 3 for Figure 1 Schematic cross-sectional view of ; Figure 4 for Figure 1 Schematic diagram of the structure in which the plate is placed; Figure 5 for Figure 1 The structural diagram of the placement plate is not provided; Figure 6 for Figure 5 Structural diagram of the lifting mechanism, adsorption mechanism and translation mechanism; Figure 7 for Figure 5 The enlarged schematic diagram at A in the middle; Figure 8 for Figure 6 A partial enlarged schematic diagram of the translation mechanism and the adsorption mechanism; Fig. 9 for Figure 8 The front and rear isometric drawings of the Fig.10 for Fig. 9 A schematic diagram of the structure of the rack, the pusher and the translation seat is obtained; Fig.11 It is a structural schematic diagram of the moving track and translation mechanism; Fig.12 Schematic diagram of the position of the translation mechanism when the placement plate moves to the rearmost end.

[0020] In the figure, 1, frame; 11, motor plate; 2, dot printing assembly; 21, lifting plate; 22, lifting screw seat; 23, lifting track; 24, dot printing plate; 25, dot printing head; 3, lifting mechanism; 31, lifting screw; 32, driving motor; 33, pulley; 34, toothed belt; 4, placement plate; 401, connecting groove; 402, adsorption hole; 41, moving track; 42, exchange groove; 421, horizontal groove; 422, lifting groove; 5, translation mechanism; 51, translation rod; 52, translation screw seat; 53, pushing part; 5 31. Lifting slot; 532. Down-pressing slot; 54. Translation seat; 541. Pushing slot; 542. Moving slot; 543. Lifting port; 55. Pushing block; 56. Lifting block; 561. Lifting shaft; 57. Down-pressing rod; 58. Spring; 6. Adsorption mechanism; 61. Adsorption box; 62. Adsorption chamber; 63. Piston; 64. Down-pull rod; 65. Driving rack; 66. Sliding track; 661. Sliding block; 67. Connecting plate; 671. Nut seat; 68. Driving shaft; 681. Threaded portion; 69. Driving gear. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 12 The present invention provides a technical solution: a dot printing structure for automobile airbag processing, comprising a frame 1 composed of four groups of vertical columns, a lifting mechanism 3 is vertically arranged in the frame 1, a dot printing component 2 is installed on the frame 1 for sliding up and down, the dot printing component 2 is connected to the lifting mechanism 3, a placement plate 4 is arranged inside the frame 1 for sliding back and forth, a translation mechanism 5 and an adsorption mechanism 6 are installed at the lower end of the placement plate 4, the adsorption mechanism 6 is connected to the translation mechanism 5, and the translation mechanism 5 is connected to the lifting mechanism 3.

[0023] The lifting mechanism 3 includes two sets of lifting screws 31 symmetrically arranged at both ends of the frame 1, and a pulley 33 is installed at the lower end of the lifting screw 31. A motor plate 11 is installed below the frame 1, and a driving motor 32 is installed on the motor plate 11. The output shaft of the driving motor 32 is connected to the two sets of lifting screws 31 through the pulley 33 and the toothed belt 34. The rotation of the driving motor 32 can make the two sets of lifting screws 31 rotate synchronously, thereby making the dot printing assembly 2 move downward or upward, and the placement plate 4 can move forward or backward under the action of the translation mechanism 5.

[0024] The dot printing assembly 2 includes four sets of lifting rails 23 symmetrically and vertically installed inside the frame 1, and a lifting plate 21 is installed between the four sets of lifting rails 23 through a slider to slide up and down, and a plurality of dot printing plates 24 are installed on the lifting plate 21, and a dot printing head 25 is arranged on the dot printing plate 24. The position and number of the dot printing plate 24 and the dot printing head 25 are adjusted accordingly according to the shape and size of the airbag to be dot printed; Lifting screw seats 22 are symmetrically arranged at both ends of the lifting plate 21 . The two sets of lifting screw seats 22 are respectively connected to two lifting screws 31 . The rotation of the lifting screws 31 can move the lifting screw seats 22 up and down, thereby moving the entire dot printing assembly 2 up and down.

[0025] Two groups of moving rails 41 are symmetrically arranged on the inner side of the frame 1, and a placing plate 4 is slidably arranged on the upper side of the moving rails 41. The placing plate 4 includes a lower plate and an upper plate. A connecting groove 401 is provided on the upper side of the lower plate, and a plurality of adsorption holes 402 are arranged on the upper and lower sides of the upper plate. The adsorption holes 402 are connected to the connecting groove 401, and the connecting groove 401 is connected to the adsorption mechanism 6 below. The adsorption mechanism 6 can adsorb and fix the airbag placed on the upper side of the placing plate 4 through the connecting groove 401 and the adsorption holes 402, so that the position of the airbag will not be offset during the movement and dotting process, thereby improving the dotting accuracy. When the airbag is placed, it is laid flat on the placement plate 4, and multiple adsorption holes 402 are located below the airbag, which can completely cover the multiple airbags. The actual distribution position of the adsorption holes 402 is changed accordingly according to the shape of the processed airbag so that the airbag can be completely covered on the adsorption holes 402.

[0026] The translation mechanism 5 includes two groups of translation seats 54 symmetrically fixed under the placement plate 4. The internal cavity of the translation seat 54 is designed to form a moving cavity. A pushing portion 53 is provided on the inner side of the translation seat 54 for sliding back and forth. A pushing block 55 is provided in the pushing portion 53 for sliding up and down, and the pushing block 55 slides into the moving cavity. A translation rod 51 is installed on the inner side of the pushing portion 53 through an axle pin rotation. The two translation rods 51 are connected to a translation screw seat 52 at one end away from the pushing portion 53 through an axle pin rotation. The two ends of the translation screw seat 52 are respectively threadedly connected to two lifting screws 31. The lifting screw 31 can make the translation screw seat 52 move up and down when it rotates. The translation screw seat 52 that moves up and down can pull the pushing portion 53 and the pushing block 55 to move forward and backward. The pushing block 55 that moves forward and backward can push the translation seat 54 to move forward and backward, thereby moving the placement plate 4 forward and backward.

[0027] The moving cavity includes a moving groove 542 arranged in the translation seat 54, and a pushing groove 541 is provided at the front end of the lower end of the moving groove 542. The height of the moving groove 542 is higher than that of the pushing groove 541. The moving groove 542 and the pushing groove 541 are distributed in a stepped manner, and the innermost end of the pushing groove 541 is designed at 90 degrees to form a pushing surface. The pushing groove 541 is designed to penetrate up and down near the end of the moving groove 542 to form a lifting port 543. A lifting block 56 is provided in the lifting port 543 for sliding up and down. A lifting shaft 561 is provided on the lifting block 56. When the pushing part 53 moves backward, the pushing block 55 will contact the pushing surface. At this time, the pushing block 55 will push the entire translation seat 54 to move backward, and the placement plate 4 will move backward together. An exchange groove 42 is provided on the inner side of the moving track 41. The exchange groove 42 includes a horizontal groove 421 provided on the inner side of the moving track 41. A lifting groove 422 inclined upward is provided at the tail end of the horizontal groove 421. The lifting shaft 561 is slidably placed in the exchange groove 42. When the placement plate 4 moves backward, the translation seat 54 can be moved together. At this time, the lifting shaft 561 will move along the exchange groove 42. When the lifting shaft 561 moves into the lifting groove 422, the lifting shaft 561 will move upward along the lifting groove 422, thereby causing the lifting block 56 to move upward together until the upper end of the lifting block 56 is flush with the surface of the moving groove 542. The lifting block 56 will push the pushing block 55 to move upward and cause the pushing block 55 to be on the moving groove 542. At this time, the pushing block 55 continues to move backward, and the placement plate 4 will not move backward accordingly. The dot printing assembly 2 continues to move downward, and the dot printing head 25 prints the surface of the airbag on its placement plate 4. Then it rotates in the opposite direction again, and the dot printing head 25 moves upward. Then the placement plate 4 moves forward and resets.

[0028] The pushing part 53 is penetrated by a lifting groove 531 on the left and right sides, and a pressing groove 532 is penetrated by a front and back side below the pushing part 53. The top of the pressing groove 532 is connected with the bottom of the lifting groove 531 to form a circular hole. A pressing rod 57 is provided in the pressing groove 532 to slide up and down. The pressing rod 57 passes through the circular hole and is fixed to the pushing block 55. A circular ring is provided below the pressing rod 57. A spring 58 is sleeved on the pressing rod 57. The upper and lower ends of the spring 58 are respectively in contact with the top of the pressing groove 532 and the circular ring. The pushing block 55 can move up and down in the lifting groove 531. When the lifting block 56 moves upward, the lifting block 56 can push the pushing block 55 to move upward together, and make the bottom end of the pushing block 55 and the bottom end of the moving groove 542 be on the same surface. At this time, the pushing block 55 can move in the moving groove 542 without causing the placement plate 4 to move. When the pushing block 55 moves forward and disengages from the moving groove 542, the spring 58 and the pressing rod 57 enable the pushing block 55 to fall into the pushing groove 541 again, thereby facilitating the next backward movement.

[0029] The adsorption mechanism 6 includes an adsorption box 61 fixed below the placement plate 4. The adsorption box 61 is hollow inside to form an adsorption chamber 62. A notch is provided below the connecting groove 401. The connecting groove 401 is connected to the adsorption chamber 62 through the notch. A piston 63 is provided in the adsorption chamber 62 to slide up and down, and two groups of lower pull rods 64 are symmetrically provided below the piston 63. The lower pull rods 64 pass through the adsorption box 61 and are placed below it, and a connecting plate 67 is fixed between the two groups of lower pull rods 64. Nut seats 671 are symmetrically sleeved at both ends of the connecting plate 67. Two groups of bearing seats are symmetrically installed on the outside of the adsorption box 61. A driving shaft 68 is rotatably installed on the bearing seat. A threaded portion 681 is provided at the lower end of the driving shaft 68, and the threaded portion 681 is threadedly connected to the nut seat 671. A driving gear 69 is installed at the upper end of the driving shaft 68. A driving rack 65 is fixed to the inner side of the push block 55, and the driving gear 69 meshes with the driving rack 65. As the pushing portion 53 moves backward along the pushing groove 541 along with the translation mechanism 5, the driving gear 69 will mesh with the driving gear 69 and cause it to rotate in the forward direction, thereby causing the driving shaft 68 to rotate in the forward direction. The forward rotating driving shaft 68 will cause the connecting plate 67 to move downward through the threaded portion 681, and the piston 63 will move downward accordingly. The internal space of the adsorption chamber 62 will increase and the pressure will decrease, thereby causing the airbag to be adsorbed on the placement plate 4.

[0030] A sliding track 66 is fixed under the placement plate 4, and two groups of sliding blocks 661 are slidably installed on the sliding track 66. The driving rack 65 is fixed under the two groups of sliding blocks 661, and the pushing part 53 is fixed to the sliding block 661, which is convenient for the installation of the driving rack 65 and the pushing part 53 and the forward and backward sliding.

[0031] When the driving gear 69 is disengaged from the driving rack 65, the pushing block 55 is at the rear end of the pushing groove 541, and at this time the pushing block 55 is in contact with the pushing surface. When the pushing portion 53 starts to move along the inside of the pushing groove 541, the pushing portion 53 drives the driving rack 65 to move backward and causes the driving gear 69 to rotate, thereby causing the piston 63 to move downward to absorb the upper airbag. At this time, the entire placement plate 4 will not move backward. When the pushing block 55 contacts the pushing surface, the piston 63 is pulled to the maximum extent. At this time, the driving rack 65 is not connected to the driving gear 69, and the piston 63 will not be pulled further. The pushing block 55 will push the translation seat 54 and the placement plate 4 to move backward, so that the airbag is under the dot printing head 25.

[0032] Working principle: A template with the same size and shape as the standard airbag is drawn on the placement plate 4, and the adsorption hole 402 is in the template. In actual use, the airbag is placed on the placement plate 4 and the airbag and the template are completely overlapped. Then the drive motor 32 can be powered on and rotated forward. The drive motor 32 will make the two lifting screws 31 rotate forward synchronously through the pulley 33 and the toothed belt 34. Since the dot printing component 2 is connected to the lifting screw 31 through the lifting screw seat 22, the dot printing component 2 will move downward accordingly. When the dot printing assembly 2 moves downward, the translation screw seat 52 will also move downward. The translation screw seat 52 moving downward will pull the translation rod 51 to move backward. In the initial stage, that is, when the placement plate 4 is at the outermost end and the piston 63 is at the uppermost end, the driving rack 65 is meshed with the driving gear 69, and the pushing block 55 is at the outermost end of the pushing groove 541. When the translation rod 51 moves backward, the pushing portion 53 will move backward along the sliding track 66 as a whole, and the driving rack 65 fixed to the pushing portion 53 will move backward accordingly. The driving rack 65 moving backward will cause the driving gear 69 to rotate forward, thereby causing the driving shaft 68 to rotate forward. The driving shaft 68 rotating forward will cause the connecting plate 67 to move downward through the threaded portion 681, and the piston 63 will move downward accordingly. The internal space of the adsorption chamber 62 increases and the pressure decreases, thereby causing the airbag to be adsorbed on the placement plate 4. When the push block 55 moves to the rear end of the push groove 541, that is, when the push block 55 contacts the push surface, the piston 63 is pulled to the maximum extent, and the drive rack 65 is disconnected from the drive gear 69 at this time, and the piston 63 will not be pulled further, and the push block 55 will push the translation seat 54 and the placement plate 4 to move backward. When the placement plate 4 moves to the rear end, the placement plate 4 will not continue to rotate, so that the airbag is under the dot printing head 25, and the dot printing assembly 2 is above the placement plate 4 and does not contact the airbag; When the placement plate 4 and the translation seat 54 are moving backward, the lifting shaft 561 will move along the exchange slot 42. When the lifting shaft 561 moves into the lifting slot 422, the lifting shaft 561 will move upward along the lifting slot 422, thereby causing the lifting block 56 to move upward together, until the upper end of the lifting block 56 is flush with the surface of the moving slot 542. The lifting block 56 will push the push block 55 to move upward and cause the push block 55 to be on the moving slot 542. When the placement plate 4 is at the rearmost end, the lifting shaft 561 is at the top of the lifting slot 422, and the push block 55 continues to move backward along the moving slot 542 under the action of the translation rod 51. At this time, the placement plate 4 will not move backward accordingly, and the dot printing assembly 2 continues to move downward, and the dot printing head 25 performs dot printing on the surface of the airbag on the placement plate 4. After the dot printing is completed, the driving motor 32 rotates in the opposite direction, the pushing block 55 in the pushing part 53 moves forward along the moving groove 542, and the dot printing component 2 moves upward as a whole to break away from the contact with the airbag. Then the dot printing component 2 moves upward and the placement plate 4 moves forward. In the process of moving forward, the adsorption thereof will also be released, so that the airbag after the dot printing can be removed when the placement plate 4 is at the outer front end.

[0033] By sliding a placement plate 4 forward and backward on the frame 1, and a translation mechanism 5 is provided at the lower end of the placement plate 4, the translation mechanism 5 and the dot printing assembly 2 are connected to the lifting mechanism 3, and when the dot printing assembly 2 moves downward, the placement plate 4 can move backward together with it and make it directly under the dot printing assembly 2, and after the placement plate 4 is under the dot printing assembly 2, the dot printing assembly 2 continues to move downward and dot prints the safety airbag below, which can ensure that the safety airbag is under the dot printing assembly 2 before the assembly can be dot printed, thereby avoiding the occurrence of misprinting and hand pressing, and improving safety; By setting an adsorption hole 402 on the placement plate 4, and setting an adsorption mechanism 6 under the placement plate 4, the adsorption mechanism 6 is connected to the adsorption hole 402, and the adsorption mechanism 6 is connected to the translation mechanism 5. The placement plate 4 can move backward and perform dot printing only after the airbag above is adsorbed and fixed, thereby avoiding position deviation caused by forgetting to fix the airbag or moving it, and improving the dot printing accuracy.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dot printing structure for automobile airbag processing, characterized in that: The invention comprises a frame (1) composed of four groups of vertical columns, a lifting mechanism (3) is vertically arranged in the frame (1), a dot printing assembly (2) is slidably mounted in the frame (1) up and down, the dot printing assembly (2) is connected to the lifting mechanism (3), a placement plate (4) is slidably mounted in the frame (1) forward and backward, a translation mechanism (5) and an adsorption mechanism (6) are mounted at the lower end of the placement plate (4), the adsorption mechanism (6) is connected to the translation mechanism (5), and the translation mechanism (5) is connected to the lifting mechanism (3).

2. A dot printing structure for automobile airbag processing as claimed in claim 1, characterized in that: The lifting mechanism (3) comprises two sets of lifting screws (31) symmetrically arranged at two ends of a frame (1), a pulley (33) being installed at the lower end of the lifting screws (31), a motor plate (11) being installed below the frame (1), a driving motor (32) being installed on the motor plate (11), and an output shaft of the driving motor (32) being connected to the two sets of lifting screws (31) via a pulley (33) and a toothed belt (34).

3. A dot printing structure for automobile airbag processing as claimed in claim 2, characterized in that: The dot printing assembly (2) comprises four groups of lifting rails (23) symmetrically and vertically mounted on the inner side of the frame (1); a lifting plate (21) is mounted between the four groups of lifting rails (23) via a slider to slide up and down; a plurality of dot printing plates (24) are mounted on the lifting plate (21); and a dot printing head (25) is arranged on the dot printing plate (24); Lifting screw seats (22) are symmetrically arranged at both ends of the lifting plate (21), and two groups of the lifting screw seats (22) are respectively connected to two lifting lead screws (31).

4. A dot printing structure for automobile airbag processing as claimed in claim 1, characterized in that: Two groups of movable rails (41) are symmetrically arranged on the inner side of the frame (1); a placement plate (4) is slidably arranged above the movable rails (41); the placement plate (4) comprises a lower plate and an upper plate; a connecting groove (401) is provided above the lower plate; a plurality of adsorption holes (402) are penetrated from top to bottom of the upper plate; the adsorption holes (402) are connected to the connecting groove (401); and the connecting groove (401) is connected to an adsorption mechanism (6) below.

5. A dot printing structure for automobile airbag processing as claimed in claim 3, characterized in that: The translation mechanism (5) comprises two groups of translation seats (54) symmetrically fixed below the placement plate (4); the internal cavity of the translation seat (54) is designed to form a moving cavity; a pushing portion (53) is provided on the inward side of the translation seat (54) for sliding forward and backward; a pushing block (55) is provided in the pushing portion (53) for sliding up and down, and the pushing block (55) slides and extends into the moving cavity; a translation rod (51) is rotatably mounted on the inward side of the pushing portion (53) via an axle pin; one end of the two translation rods (51) away from the pushing portion (53) is rotatably connected to a translation screw seat (52) via an axle pin; and the two ends of the translation screw seat (52) are respectively threadedly connected to two lifting screws (31).

6. A dot printing structure for automobile airbag processing as claimed in claim 5, characterized in that: The movable cavity comprises a movable groove (542) arranged in the translation seat (54); a push groove (541) is provided at the front end of the lower end of the movable groove (542); the height of the movable groove (542) is higher than the push groove (541); the movable groove (542) and the push groove (541) are arranged in a stepped manner; and the innermost end of the push groove (541) is designed to form a push surface at a 90-degree angle; an end of the push groove (541) close to the movable groove (542) is designed to penetrate up and down to form a lifting opening (543); a lifting block (56) is provided in the lifting opening (543) to slide up and down; and a lifting shaft (561) is provided on the lifting block (56); The movable track (41) is provided with a switching groove (42) on the inner side thereof. The switching groove (42) comprises a horizontal groove (421) arranged on the inner side of the movable track (41). The rear end of the horizontal groove (421) is provided with a lifting groove (422) designed to be inclined upward. The lifting shaft (561) is slidably placed in the switching groove (42).

7. A dot printing structure for automobile airbag processing as claimed in claim 6, characterized in that: The pushing portion (53) penetrates the left and right sides to form a lifting groove (531), and the lower side of the pushing portion (53) penetrates the front and rear sides to form a lower pressing groove (532). The top end of the lower pressing groove (532) is connected to the bottom end of the lifting groove (531) to form a circular hole. A lower pressing rod (57) is provided in the lower pressing groove (532) to slide up and down. The lower pressing rod (57) passes through the circular hole and is fixed to the pushing block (55). A circular ring is provided below the lower pressing rod (57). A spring (58) is sleeved on the lower pressing rod (57). The upper and lower ends of the spring (58) are respectively in contact with the top end of the lower pressing groove (532) and the circular ring.

8. A dot printing structure for automobile airbag processing as claimed in claim 7, characterized in that: The adsorption mechanism (6) comprises an adsorption box (61) fixed below the placement plate (4); the adsorption box (61) is hollow inside to form an adsorption chamber (62); a notch is provided below the communication groove (401); and the communication groove (401) is connected to the adsorption chamber (62) via the notch; A piston (63) is provided in the adsorption chamber (62) to slide up and down, and two groups of lower pull rods (64) are symmetrically provided below the piston (63). The lower pull rods (64) pass through the adsorption box (61) and are placed below it, and a connecting plate (67) is fixed between the two groups of lower pull rods (64), and nut seats (671) are symmetrically sleeved at both ends of the connecting plate (67). Two groups of bearing seats are symmetrically installed on the outside of the adsorption box (61), and a driving shaft (68) is rotatably installed on the bearing seat. The lower end of the driving shaft (68) is provided with a threaded portion (681), and the threaded portion (681) is threadedly connected to the nut seat (671), and a driving gear (69) is installed on the upper end of the driving shaft (68), and a driving rack (65) is fixed on the inner side of the pushing block (55), and the driving gear (69) is meshed with the driving rack (65).

9. A dot printing structure for automobile airbag processing as claimed in claim 8, characterized in that: A sliding track (66) is fixed below the placement plate (4), two groups of sliding blocks (661) are slidably mounted on the sliding track (66), the driving rack (65) is fixed below the two groups of sliding blocks (661), and the pushing portion (53) is fixed to the sliding blocks (661).

10. A dot printing structure for automobile airbag processing as claimed in claim 9, characterized in that: When the driving gear (69) is disengaged from the driving rack (65), the pushing block (55) is located at the rear end of the pushing groove (541), and at this time, the pushing block (55) is in contact with the pushing surface.

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